1. Plasterboard double layer, 25 mm thickness
2. Air cavity in the metal frame, 50 mm thickness
3. Airborne Noise Insulation in 48 mm thick
    laminated panels. The central panel is made
    of fibre and granules of SBR (Styrene Butadiene
    Rubber) and granules of EPDM (Ethylene
    Propylene Diene Monomer) with a thickness of
    8 mm and a density of 800 kg/m³, hot pressed
    with a ureic adhesive; on either side there are
    two panels in polyester fibre of thickness 2 cm 
    each and a density of 60 kg/m³.
    Panels dimensions: 1200 mm in length and
    600 mm in width
4. Air cavity in the metal frame, 50 mm thickness
5. Plasterboard double layer, 25 mm thickness
6. Metal stud, 50 mm thickness
7. Underwall strip
8. Electrical system within the metal frame